American activist and author (1880–1968), who, through her tireless efforts on behalf of the disabled, and the fictionalization of her early education in the classic play and film The Miracle Worker, became the most famous blind person in the world. DS, signed in pencil “Helen Keller,” one page, 7 x 4.5, October 28, 1905. A receipt acknowledging payment of $500.00 from the Perry Mason Company for an article titled “Industrial Training for the Blind.” A hint of subtle soiling, and one vertical fold each to first and last names, otherwise fine condition. R&R COA.